jmellony, Welcome to the forums.
It sounds like you have two problems. First you'll need to enter the wrong password 10 times. That will wipe all the data from the BB. Once you've gained access you'll likely need to remove the IT policy from the device. See
this thread.
Then you'll need to contact an unlocking service to get the BB unlocked to use on another network. Try
GSM PhoneSource - When Only The Best Will Do or check the sponsor section of the forums for several reputable unlocking services.